Failure Analysis: First of all your computer installed what agent software to always prompt the agent software, perhaps your agent software or uninstall. There is your computer has been prompted to not accept the agent software, resulting in network failure, it is estimated to be associated with the shared defender driver. If your computer can not use the proxy software, I guess is the NIC is bound, as if you change a network card in the Internet, do not go to a truth. Need to call your Internet company to help you start your mouth. See if you can find the agent software installed on your computer
Workaround:
First, the Registry repair uninstall Agent software
Restart the computer, in the boot time press F8 into Windows security mode, first go to the control Panel to find the agent software you downloaded to uninstall it, if the uninstall is not lost then remember the name of the agent software, then the XP system is clicked "Start-run", if it is Win 7, Without opening the running project, press the win key +r open the Run window, enter "regedit" in the running window, the operation of the Registry is the Registry window under the F3, jump out of the search, the software name copy and paste into, and then to find the key, the registry will be selected when the key to delete the corresponding selected prompt, To search for key names that are critical to the name of the software, remove all the key values that were found about it.
Second, restart the computer, reconfigure the network
Go to Control Panel-network and Sharing Center---change adapter configuration---Local Area Connection, right-click "Properties (the network you are currently using)", select Winpkfilter (Super-Qiang component) in the "This connection uses the following items", then you can safely use it after uninstalling.
Third, if still can not help you solve the problem, you can not do anything, suggest you only get the shop to see Ah, because this to specific circumstances to specific analysis, here to learn worry can only help you here.
There are many users in order to enter the foreign site to download, it will use the agent software. Here we recommend that you use the IP Proxy Client tool ProxifierPE2.91 Chinese version.